PDC bearing introduction:
PDC and TC (Tungsten carbide) Radial Bearing is used as
antifriction bearing for downhole motor, which is widely used in
oilfield service companies & downhole motor factories. We have
three different types includes PDC radial bearing,PDC thrust
bearing,Tungsten Carbide Tile Bearing,Tungsten Carbide Grain
Bearing and Tungsten Carbide Disc Bearing,from size 54 to size 286
for your choice (a total of 14 size).
The specifications:φ124 xφ80 x H26 φ148 xφ91.5 x H26 PDC bearings
have high resistance to grinding and can operate at high
temperatures (currently at a maximum temperature of 233 ° C) and
can withstand large axial loads. PDC materials have a low friction
coefficient and are not affected by natural or mud chemicals
present in the well. Each pair of PDC thrust bearings consists of
an upper ring and a lower ring, and each bearing ring contains a
cemented carbide ring and a PDC cutter.
Polycrystalline Diamond (PCD) radial bearings are comprised of a
series of PCD inserts assembled (usually by brazing) in carrier
rings. A typical PCD radial bearing set includes a rotating and
stationary bearing ring. These two rings oppose each other with the
PCD surface on the inside diameter of one ring in direct contact
with the PCD surface on the outside diameter of the mating ring.
PCD Bearings prides itself in its ability to precisely shape
polycrystalline diamond. This has allowed Bearings to provide PCD
radial bearings that have accurate diameters, tight clearance
tolerances, and ultra-fine surface finishes. During operation, the
PCD surfaces of the rotating and stationary rings rub against each
other. This rubbing contact exhibits very low friction (typically
between 0.01 and 0.05).The ultra-high hardness and strength of PCD
allows Bearings' radial bearings to sustain very high loads during
operation. In addition, they wear at a very low rate, resulting in
the PCD bearings lasting from 1000 hours to many years, depending
on the application. These PCD inserts also utilize the highest
quality steel grade available. PCD radial bearings are ideally
suited for process-fluid-lubricated applications, particularly
those where abrasive particles are present in the fluid. The PCD
surfaces maintain their geometry and exhibit minimal wear in the
presence of these abrasive-laden fluids.
Our PDC and TC (Tungsten carbide) Radial Bearing advatages are as
1) Highly resistant to abrasion, erosion, corrosion, and mechanical
2) Extremely resistant to chipping, cracking, and flaking which are
inherent problems in cladding or welded overlay processes
3) High heat conductivity eliminates thermal cracking
4) Proprietary design eliminates catastrophic downhole radial
5) Carbide tile and matrix design ensures extended life compared to
cladding or welded overlay designs
6) Inner and outer components can be reconditioned.
7) The hardness of body surface can reach 30-37 HRC.
PDC Thrust bearing
Diamond bearing PDC Thrust bearing are widely used for turbo drills
and mud motors,we can supply the size from 1inch to 10inch in
diameter with good quality and best price.
1.Product Introduction of PDC Thrust bearing
PDC Thrust Bearing is widely used in turbo drills,mud motors and
other oil field applications. We have two different types includes
PDC radial bearing and PDC thrust bearing.Compared with tungsten
carbide bearing,The PDC bearing has longer working life,its life is
4-10 times longer than tungsten carbide bearing, meanwhile it can
also bear the increased load capacity.
2.Product Specification of PDC Thrust bearing
The bearings are available in size from 1inch to 10inch in
We can make PDC Radial bearing and PDC Thrust bearing as your
specific drawings or samples.
3.Production Feature and Application of PDC Thrust bearing
High wear resistance
High corrosion resistance
Longer service life
widely used in turbo drills, mud motors and many other oil field